Home / 448,631.85-618,761.86-287,501.88

Finding the Fourth Proportional to 448,631.85, 618,761.86 and 287,501.88

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Solution

The fourth proportional to 448,631.85, 618,761.86 and 287,501.88 is: 396,528.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,631.85 : 618,761.86 = 287,501.88 : x
  2. Step 2: Convert to fraction form
    448,631.85/618,761.86 = 287,501.88/x
  3. Step 3: Cross multiply
    448,631.85x = 618,761.86 × 287,501.88
  4. Step 4: Simplify right side
    448,631.85x = 177,895,197,303.54
  5. Step 5: Solve for x
    x = 177,895,197,303.54/448,631.85
  6. Step 6: Final answer
    x = 396,528.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.